The colors of the iPhone do not match when checking with the serial - is this the norm?

Question

iPhone

I bought a girl on the DR iPhone SE RoseGold on 64GB in the C-Store
Now I decided to buy an iPhone, but from my hands, and some 4s or 5s I
tested the girl’s phone to check the serial number ( here ) and it turned out that the phone is not RoseGold, but simply Gold.
What's a beard? Moreover, this is not written anywhere, it’s just that a golden one is drawn on the picture and the picture itself is called that.
Although I read that the picture must match the model

Answer 1

The hull could be changed.
Serial and color must match.